Window-operating apparatus



July 9, 1929. J. E. sERsTE WINDOW OPERATING APPARATUS Filed Aug. 10, 1927 2 sheets-'sheet I I I l I l I I l I l I l I I l I l l I l I I I I l l l l l l l J CIL-:I t

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J. E. SERSTE WINDOW OPERATING APPARATUS 'Filed Aug. 1o, 1927 2 sheets-sheet 2 Patented July 9, 1929.

"ber which UNITED STATES.

JACQUES nerim snnsrr'z,

OF BRUSSELS, BELGIUM.

WIN DOW-OPERATIN G- APPARATUS.

Application filed August 10, 1927, Serial No. 212,010, and in Belgium 'August 26,y 1926.

This invention relates to window operating apparatus and 'it has more particularly reference to apparatus comprising a toggle adapted to impart to the window the vertical and lateral movements necessary for clearing the weather rail. It is an object of my invention to provide an apparatus of this kind which will be simple and strong and will not give rise to vibrations when usedY in motor cars. v

The apparatus according to the present invention comprises one or preferably two toggles having each an arm pivoted to the window sash and guided in a slotted memis also pivoted to the sash `and adapted to engage stationary guides atthe top of its travel. Owing to this double guiding action, the lateral movement required for bringing the sash over the sill takes place while the toggles pass through and beyond their dead center.

The toggles are conveniently operated in a known manner by means of a handle or crank and the apparatus is mounted bodily in a frame so that it can easily be fitted in the groove or case in which the window sash is to be accommodated.

The arrangement of the toggles and of their operating means may be varied according to requirements as shown in the accompanying drawings illustrating by way of example various embodiments of my invention in its application to vehicle windows.

Fig. 1 is a front elevation of the apparatus mounted in a carriage door.

Fig. 2 is a vertical cross-section on line A`-'B of Fig. 1.

Fig. 3 shows on a larger scale one of the slotted guiding members pivoted to the window sash. Fig. 4 is a vertical cross-section on line C-l) of Fig. 3 and Fig. 5 is a bottom view of a guiding member.

Figs. 6, 7 and 8 are diagrammatic eleva tions ,showing modified forms of the apparatus and Fig. 9 is a side view, on a larger scale, of the gears shown in Fig. 8. i

In the drawing 1 and 2 respectively denote the outer and inner walls of a carriage door in which is provided a space 3 (Fig. 2) for accommodating the window 4 which is guided between vertical or inclined grooved guides 5. To the inner wall 2 is secured by means of rivets 6 or otherwise, a frame or casing 7 carrying all the parts of the mechanism. In this frame are mounted a shaft 8 having a projecting end adapted to receive a. handle or crank (not shown), an intermediate shaft 9, and two shafts 10 on each of which are rigidly secured a lever 11 and a toothed wheel orsector 12. On the shaft 9 are mounted two gears 13, 14 respectively in mesh with a pinion 15 on Shanks 23 pivoted on pins 24 supported in,

bearings 25 secured to the sash 20. The slots *'21vcomprise two straight portions connected by a curved portion as shown in Fig. 5.

When sulicient room is available in the direction of the width of the window to enable the toggle arms to swing freely, the levers 11 may be straight bars arranged as shown in 7. If on the other hand a con- Mfined space only is available, the levers 11 are mounted crosswlse and one at least of'them is curved as shown they can swine' Another c in Figs. 1 and 2 so that freely in parallel planes. convenient arrangement illustrated in Fig. 8, consists in mounting the levers 11 coaxially like the hands of a clock. As these levers have to swing together through equal angles but in opposite directions, the toothed wheels or sectors 12, 12 respectively controlling them are rotated by the shaft 9, one directly and the other through an auxiliary pinion 26. Ap shown 9 one of the levers 11 is mounted shaft 27 and the other on a central shaft 28. On shaft 27 is mounted the gear 12 lmeshing with the pinion 14 on shaft 9, while shaft 28 carries the gear 12 meshing with the auX- iliary pinion 26 which is ion 29 on shaft 9. Like in Fig.

the other parts of 'the .mechanism the shaft 30 carrying the auxiliary pinion is supported in the frame 7.

Instead of directly receiving its motion from the crank shaft 8, the shaft 9 may of course be rotated by any convenientmeans. In Fig. 6 I have illustrated a construction which makes it possible to locate the crank shaft in any convenient posit-ion. The shaft 8 here is mounted at the end of an arm 31 pivotally supported on the shaft 9 so that on a tubularrotated by a pinwhen the apparatus is beingtted in a motor car body, one can select on the circumference `v the most suitable place for the shaft 8. The

arm 31 is then secured to the door locking the window sash (or other part ofthe car body as the case means ot' screws 32 for example. A chain 33 is engaged by the pinion 15 on the shaft 8 and rotates the shaft 9 by means of a reducing gear 34:.l The length of the arm 31 may of course be varied according to requirements, and the chain may be replaced by other suitable motion transmitting means.

Above the window' sill 35 (Fig. 2)` the guides 5 are extended by grooved guides 36 pivoted near the top, at 37, to the outer frame 38 of the window. The guides 36 are housed in downwardly liaring grooves 39 so that these guides together with the window sash are adapted to swing on the pivots 37 when the sash is fully raised. i

In Figs. 1, 7 and 8 I have shown in dotted lines the lower edge of the sash in its lowermost position; When the the toggle arms 11, 17 raise the window until the pivots- 10, 16, 18 'of each toggle are in alignment (dead centre) whereupon the window starts to drop. But before it reaches the dead centreiposition the guiding members 22 are engaged between the walls 40 of the groove in the window sill 35 (Fig. Il) which is just wide enough -to accommodate the members 22, so that they are prevented from moving laterally. The arms 17 continuing their motionthen, ride through the curved portions of the slots 21 and are compelled to move laterally, the levers 11 allowing a slight lateral motion by reason of their elasticity. The lugs 19 on the sash 2() must follow this movement, and the window then yfully engaged between the guides 36 is thus caused to swing on the pivots 37 so that a slight drop beyond the dead centre position brings the forwardly projecting edge 11 of the sash on the weather rail 42 as shown in Figli. The movements just described will of course take place in reverse succession and'direction when the shaft 8 is rotated in the opposite direction.

The apparatus according to the invention may be provided with a suitable brake for in any desired posi.- tion.

aIIhe apparatus may'of course comprise only a single toggle 11, 17 instead of'two, the

pivot. 18 of this toggle then being located centrally of the window sash. Other modifications may of course be'made in the construction herein illustrated without departing from the scope of the invention. Furthermore, I wish it to be understood that although I have described and illustrated my improved window operating apparatus only in its application to vehicle windows, it may, with equal facility and advantage be applied to sliding windows in any other situation, as,

may be) byY shaft 8 is rotated.

for instance to the windows of buildings, of all kinds or other structures.

I claim:

1. In a window operating mechanism, the combination with a Window sash, of a shaft, a toggle having one arm pivoted on said shaft and another arm'pivoted to said sash, a slotted member pivoted of guiding plates'secured to said sash, the second mentioned arm of said toggle being guided both in said slotted member and between said plates, and stationary guides engaging said slotted member travel.

2. In a window operating mechanism, the combination with a window sash, ot two toggles having each an arm pivoted to said sash, two slotted members located beneath at the top of its said sash and pivotally connected therewith,

the slots in said members comprising two straight portions and therebetween a curve portion, said toggle arms being guided each in one of said slots, and stationary guides for said slotted members.

3. In a window operating mechanism, the combination with a window sash, of a toggle having an arm pivoted to said sash, a pair of lugs secured to said sash and engaging said toggle arm, a pivoted guide depending from said sash and also engaging said toggle arm, a stationary guide adapted to engage said pivoted guide when the sash is nearing its topmost position, and means for operating said toggle. x

4. In a window operating mechanism, the

combination with a window sash, of a pair of toggles having each an arm pivoted to said sash, a pair of slotted members depending from said sash and pivotally connected therewith, said members engaging said toggle arms and being adapted to cause same to move laterally, stationary guides adapted to co-operate with said slotted members to constrain said toggle arms to move laterally, and means on said sash engaging said toggle arms to cause said sash to partake in their lateral movements.

5. In a window operating mechanism, the

combination with a window sash, of a pair of toggles having each an arm pivoted to said sash, a pair of yoke-shaped guides for said toggle arms depending from said sash and pivotally connected therewith, lugs on said sash engaging said toggle arms and located within said yoke-shaped guides, 'and stationary guides adapted to co-operate with said yoke-shaped guides.

6. In a window operating mechanism, the combination with a window sash, of a pivot on said sash, another pivot on said sash extending to rightV angles to the :first pivot, a toggle arm pivoted on one of said pivots,

a guidetor said toggle arm pivoted on the other pivot, a pair of lugs rigid with saidl sash, said toggle arm being engaged between to said sash, a pair lll'.

said lugs, and a stationary guide adapted to cooperate with said pivoted guide.

-7. The combination, with a Wall havinga groove therein, of a window sash adaptedto be lowered into said groove, a pair of toggles having each an arm pivoted to said sash, a pair of slotted members pivoted to said sash, two pairs of guiding plates secured to said sash, the toggle arms pivoted to the sash being each engaged in one of said. slotted members and between one of said pairs of plates, and stationary guides at the top of said groove adapted to engage said slotted members. i

8. The combination, with a Wall having a groove therein, of a window sash adapted to be lowered into said groove, a frame adapted to be secured within said groove, a pair of toggles supported in said frame, said toggles having each an arm pivoted to' said sash, a pair of slotted members pivoted to said sash and engaging each one of said toggle arms, guides for said slotted members secured to said Wall at the top of said groove, an arm pivotally mounted in said frame, an operating shaft mounted in,said arm, and driving connections between said shaft and said toggles. f

JACQUES EGIDE sERsT. 

